Beer keg stacking spacer



FIG. 1 is a top plan view of a beer keg stacking spacer showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top, front perspective view thereof; and,

FIG. 4 is a bottom, rear perspective view thereof. 

The ornamental design for a beer keg stacking spacer, as shown and described. 